Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1989-12-14
1991-05-21
Lee, John D.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
350 962, 250551, G02B 628
Patent
active
050169610
ABSTRACT:
Transmission of one or more electrical signals from a rotatable to a stationary member is provided along one or more channels, with an array of optical emitters positioned in a circle concentric with the axis of rotation of the rotatable member. A concentric array of facing optical detectors on the stationary member is coaxially spaced from the emitters. As the rotatable member is rotated, the optical detectors are sequentially switched in sync with the corresponding rotation of the respective emitter which is transmitting the signal. The direction of transmission may be reversed by reversing the location of the emitters and detectors to the stationary and rotatable members, respectively. In an alternate configuration, a concentric cylindrical embodiment with a cylindrical surface having emitters or detectors thereon rotates within a concentric stationary cylindrical surface having a circular configuration of facing detectors or emitters, respectively, thereon.
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Almeida George B.
Ampex Corporation
Barns Stephen W.
Lee John D.
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